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    <bean id="filterInvocationInterceptor" class="net.sf.acegisecurity.intercept.web.FilterSecurityInterceptor">
        <property name="authenticationManager"><ref local="authenticationManager"/></property>
        <property name="accessDecisionManager"><ref local="accessDecisionManager"/></property>
         <property name="objectDefinitionSource">
            <value>
                CONVERT_URL_TO_LOWERCASE_BEFORE_COMPARISON
                PATTERN_TYPE_APACHE_ANT
                /signup.html=ROLE_ANONYMOUS,admin,tomcat
                /passwordhint.html*=ROLE_ANONYMOUS,admin,tomcat
                /**/*.html*=admin,tomcat
                /clickstreams.jsp=admin
            </value>
        </property>
    </bean>

/*
* Copyright 2004-2005 wangz.
* Project shufe_newsroom
*/
package com.skyon.um.security.acegi.intercept.web;

import java.beans.PropertyEditorSupport;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.StringReader;

import net.sf.acegisecurity.ConfigAttributeDefinition;
import net.sf.acegisecurity.ConfigAttributeEditor;
import net.sf.acegisecurity.intercept.web.FilterInvocationDefinitionMap;
import net.sf.acegisecurity.intercept.web.PathBasedFilterInvocationDefinitionMap;
import net.sf.acegisecurity.intercept.web.RegExpBasedFilterInvocationDefinitionMap;

import org.apache.commons.lang.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
* @since 2005-8-4
* @author 王政
* @version $Id: FilterInvocationDefinitionSourceDynamicExtentionEditor.java,v 1.2 2005/11/04 15:55:07 wangzheng Exp $
*/
public class FilterInvocationDefinitionSourceDynamicExtentionEditor extends
        PropertyEditorSupport {

    public static final String ANT_PATH_KEY = "PATTERN_TYPE_APACHE_ANT";
   
    public static final String LOWER_CASE_URL_KEY = "CONVERT_URL_TO_LOWERCASE_BEFORE_COMPARISON";

    public static final String DONT_USE_ME_KEY = "DONT_USE_ME";
   
    public static final String STAND_DELIM_CHARACTER = ",";

    private static final Log logger = LogFactory.getLog(FilterInvocationDefinitionSourceDynamicExtentionEditor.class);
   
    /**
     * @see java.beans.PropertyEditorSupport#setAsText(java.lang.String)
     */
    public void setAsText(String text) throws IllegalArgumentException {               
        FilterInvocationDefinitionMap source = new RegExpBasedFilterInvocationDefinitionMap();
               
        if (StringUtils.isBlank(text)) {
            // Leave target object empty
        } else {         
            // Check if we need to override the default definition map
            if (text.lastIndexOf(ANT_PATH_KEY) != -1) {
                source = new PathBasedFilterInvocationDefinitionMap();

                if (logger.isDebugEnabled()) {
                    logger.debug(("Detected PATTERN_TYPE_APACHE_ANT directive; using Apache Ant style path expressions"));
                }
            }

            if (text.lastIndexOf(LOWER_CASE_URL_KEY) != -1) {
                if (logger.isDebugEnabled()) {
                    logger.debug("Instructing mapper to convert URLs to lowercase before comparison");
                }

                source.setConvertUrlToLowercaseBeforeComparison(true);
            }
           
            if (text.indexOf(DONT_USE_ME_KEY) != -1) {
                if (logger.isDebugEnabled()) {
                    logger.debug("DETECTED " + DONT_USE_ME_KEY + " directive;  skip parse, Use " + EhCacheBasedFilterInvocationDefinitionSourceCache.class + " to parse!");
                }
                addSecureUrl(source, "/dontuseme", "dontuseme");
            } else {
                BufferedReader br = new BufferedReader(new StringReader(text));
                int counter = 0;
                String line;

                while (true) {
                    counter++;

                    try {
                        line = br.readLine();
                    } catch (IOException ioe) {
                        throw new IllegalArgumentException(ioe.getMessage());
                    }

                    if (line == null) {
                        break;
                    }

                    line = line.trim();

                    if (logger.isDebugEnabled()) {
                        logger.debug("Line " + counter + ": " + line);
                    }

                    if (line.startsWith("//")) {
                        continue;
                    }

                    if (line.equals(LOWER_CASE_URL_KEY)) {
                        continue;
                    }

                    if (line.lastIndexOf(‘=‘) == -1) {
                        continue;
                    }

                    // Tokenize the line into its name/value tokens
                    String[] nameValue = org.springframework.util.StringUtils.delimitedListToStringArray(line, "=");
                    String name = nameValue[0];
                    String value = nameValue[1];

                    addSecureUrl(source, name, value);               
                }
            }
           


        }

        setValue(source);
    }
   

    /**
     * @param source
     * @param name
     * @param value
     * @throws IllegalArgumentException
     */
    private void addSecureUrl(FilterInvocationDefinitionMap source, String name, String value)
        throws IllegalArgumentException {
       
        // Convert value to series of security configuration attributes
        ConfigAttributeEditor configAttribEd = new ConfigAttributeEditor();
        configAttribEd.setAsText(value);

        ConfigAttributeDefinition attr = (ConfigAttributeDefinition) configAttribEd.getValue();

        // Register the regular expression and its attribute
        source.addSecureUrl(name, attr);
    }


}

/*
* Copyright 2005-2010 the original author or autors
* 
*    http://www.skyon.com.cn
*
* Project { SkyonFramwork }
*/
package com.skyon.um.security.acegi.intercept.web;

import net.sf.acegisecurity.intercept.web.FilterInvocationDefinitionSource;

import org.springframework.beans.factory.FactoryBean;

import com.skyon.framework.spring.ehcache.FlushableCache;

/**
* <class>FilterInvocationDefinitionSourceCache</class> use to hold the global FilterInvocationDefinitionSource,
* it keeps a static variable , if the source been changed(generally the database data),  the reload method should be called
*
* @see com.skyon.um.security.acegi.intercept.event.FilterInvocationDefinitionSourceChangedEvent
* @see com.skyon.um.security.acegi.intercept.event.FilterInvocationDefinitionSourceListener
* @see com.skyon.um.security.acegi.intercept.web.SecurityEnforcementDynamicExtensionFilter
* @since 2005-8-7
* @author 王政
* @version $Id: FilterInvocationDefinitionSourceCache.java,v 1.1 2005/11/04 15:55:07 wangzheng Exp $
*/
public interface FilterInvocationDefinitionSourceCache extends FactoryBean, FlushableCache {
       
        /** The Perl5 expression  */
    int REOURCE_EXPRESSION_PERL5_REG_EXP = 1;
   
    /** The ant path expression */
    int RESOURCE_EXPRESSION_ANT_PATH_KEY = 2;
   
    /**
     * Set resource expression, the value must be {@link #REOURCE_EXPRESSION_PERL5_REG_EXP} or {@link #RESOURCE_EXPRESSION_ANT_PATH_KEY}
     * @see #REOURCE_EXPRESSION_PERL5_REG_EXP
     * @see #RESOURCE_EXPRESSION_ANT_PATH_KEY
     * @param resourceExpression the resource expression
     */
    void setResourceExpression(int resourceExpression);
   
    /**
     * Set whether convert url to lowercase before comparison
     * @param convertUrlToLowercaseBeforeComparison whether convertUrlToLowercaseBeforeComparison
     */
    void setConvertUrlToLowercaseBeforeComparison(boolean convertUrlToLowercaseBeforeComparison);
   
        /**
        * Get the defination source, generally from a database schema
        * @return the defination source
        */
    FilterInvocationDefinitionSource getFilterInvocationDefinitionSource();
           

}

/*
* Copyright 2005-2010 the original author or autors
* 
*    http://www.skyon.com.cn
*
* Project { SkyonFramwork }
*/
package com.skyon.um.security.acegi.intercept.web;

import net.sf.acegisecurity.ConfigAttributeDefinition;
import net.sf.acegisecurity.ConfigAttributeEditor;
import net.sf.acegisecurity.intercept.web.FilterInvocationDefinitionMap;
import net.sf.acegisecurity.intercept.web.FilterInvocationDefinitionSource;
import net.sf.acegisecurity.intercept.web.PathBasedFilterInvocationDefinitionMap;
import net.sf.acegisecurity.intercept.web.RegExpBasedFilterInvocationDefinitionMap;
import net.sf.ehcache.Cache;
import net.sf.ehcache.Element;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.util.Assert;

import com.skyon.framework.spring.ehcache.CacheUtils;
import com.skyon.framework.spring.ehcache.SerializableObjectProvider;
import com.skyon.framework.spring.support.MandatorySingletonBeanSupport;

/**
* @since 2005-8-7
* @author 王政
* @version $Id: EhCacheBasedFilterInvocationDefinitionSourceCache.java,v 1.2 2005/11/17 09:38:25 wangzheng Exp $
*/
public class EhCacheBasedFilterInvocationDefinitionSourceCache extends MandatorySingletonBeanSupport
        implements FilterInvocationDefinitionSourceCache, InitializingBean {
   
    private static final Log logger = LogFactory.getLog(EhCacheBasedFilterInvocationDefinitionSourceCache.class);
   
    private int resourceExpression;
   
    private boolean convertUrlToLowercaseBeforeComparison = false;
       
    private ResourceMappingProvider resourceMappingProvider;
   
    private Cache cache;
   
    private Object lock = new Object();
   
    /**
     * @see com.skyon.um.security.acegi.intercept.web.FilterInvocationDefinitionSourceCache#getFilterInvocationDefinitionSource()
     */
    public FilterInvocationDefinitionSource getFilterInvocationDefinitionSource() {
            synchronized (lock) {
                Element element = CacheUtils.get(getCache(), "key");
               
                if (element == null) {
                        FilterInvocationDefinitionSource definitionSource = (FilterInvocationDefinitionSource) getFilterInvocationDefinitionSourceFromBackend();
                        element = new Element("key", new SerializableObjectProvider(definitionSource));
                        getCache().put(element);
                }
               
                return (FilterInvocationDefinitionSource) ((SerializableObjectProvider) element.getValue()).getSourceObject();
            }
    }
           
        public void flushCache() {
                CacheUtils.flushCache(getCache());
                getFilterInvocationDefinitionSource();
        }
   
    private FilterInvocationDefinitionMap getFilterInvocationDefinitionSourceFromBackend() {       
            logger.info(" 開始加載系統(tǒng)資源權(quán)限數(shù)據(jù)到緩存... ");
           
            FilterInvocationDefinitionMap definitionSource = null;
       
            switch (resourceExpression) {
            case REOURCE_EXPRESSION_PERL5_REG_EXP : {
                definitionSource = new RegExpBasedFilterInvocationDefinitionMap();
                break;
            }
            case RESOURCE_EXPRESSION_ANT_PATH_KEY : {
                definitionSource = new PathBasedFilterInvocationDefinitionMap();
                break;
            }
            default : {
                throwException();
            }
        }
       
        definitionSource.setConvertUrlToLowercaseBeforeComparison(isConvertUrlToLowercaseBeforeComparison());
       
        ResourceMapping[] mappings = getResourceMappingProvider().getResourceMappings();
        if (mappings == null || mappings.length ==0) {
            return definitionSource;
        }
       
        for (int i = 0; i < mappings.length; i++) {
            ResourceMapping mapping = mappings[i];
            String[] recipents = mapping.getRecipients();
           
            if (recipents == null || recipents.length == 0) {
                if (logger.isErrorEnabled()) {
                    logger.error("Notice, the resource : " + mapping.getResourcePath() + " hasn‘t no recipents, it will access by any one ! ");
                }
                continue;
            }
           
            StringBuffer valueBuffer = new StringBuffer();
            for (int j = 0; j < recipents.length; j++) {
                valueBuffer.append(recipents[j]);
                if (j < recipents.length - 1) {
                    valueBuffer.append(FilterInvocationDefinitionSourceDynamicExtentionEditor.STAND_DELIM_CHARACTER);
                }
            }
            String value = valueBuffer.toString();                   
            addSecureUrl(definitionSource, mapping.getResourcePath(), value);
         }
       
        logger.info(" 成功加載系統(tǒng)資源權(quán)限數(shù)據(jù)到緩存 ! ");
        return definitionSource;
    }

    /**
     * @param source
     * @param name
     * @param value
     * @throws IllegalArgumentException
     */
    private synchronized void addSecureUrl(FilterInvocationDefinitionMap source, String name, String value)
        throws IllegalArgumentException {
       
        // Convert value to series of security configuration attributes
        ConfigAttributeEditor configAttribEd = new ConfigAttributeEditor();
        configAttribEd.setAsText(value);

        ConfigAttributeDefinition attr = (ConfigAttributeDefinition) configAttribEd.getValue();

        // Register the regular expression and its attribute
        source.addSecureUrl(name, attr);
    }
   

    public void afterPropertiesSet() throws Exception {
        if (resourceExpression != REOURCE_EXPRESSION_PERL5_REG_EXP && resourceExpression != RESOURCE_EXPRESSION_ANT_PATH_KEY) {
            throwException();
        }       
        Assert.notNull(getResourceMappingProvider(), " resourceMappingProvider must be specified");     
        Assert.notNull(getCache(), " cache must be specified");   
    }


    /**
     * @throws IllegalArgumentException
     */
    private void throwException() throws IllegalArgumentException {
        throw new IllegalArgumentException("wrong resourceExpression value");
    }
       
    /**
     * @return Returns the resourceMappingProvider.
     */
    public ResourceMappingProvider getResourceMappingProvider() {
        return resourceMappingProvider;
    }

    /**
     * @param resourceMappingProvider The resourceMappingProvider to set.
     */
    public void setResourceMappingProvider(ResourceMappingProvider resourceMappingProvider) {
        this.resourceMappingProvider = resourceMappingProvider;
    }

    /**
     * @return Returns the convertUrlToLowercaseBeforeComparison.
     */
    public boolean isConvertUrlToLowercaseBeforeComparison() {
        return convertUrlToLowercaseBeforeComparison;
    }

    /**
     * @param convertUrlToLowercaseBeforeComparison The convertUrlToLowercaseBeforeComparison to set.
     */
    public void setConvertUrlToLowercaseBeforeComparison(
            boolean convertUrlToLowercaseBeforeComparison) {
        this.convertUrlToLowercaseBeforeComparison = convertUrlToLowercaseBeforeComparison;
    }

    /**
     * @return Returns the resourceExpression.
     */
    public int getResourceExpression() {
        return resourceExpression;
    }

    /**
     * @param resourceExpression The resourceExpression to set.
     */
    public void setResourceExpression(int resourceExpression) {
        this.resourceExpression = resourceExpression;
    }


        /**
        * @return Returns the cache.
        */
        public Cache getCache() {
                return cache;
        }


        /**
        * @param cache The cache to set.
        */
        public void setCache(Cache cache) {
                this.cache = cache;
        }



       
}

public class SecurityEnforcementDynamicExtensionFilter extends
        SecurityEnforcementFilter implements InitializingBean {
… 略去

public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {                      
                // get the defination source form soure holder
                getFilterSecurityInterceptor().setObjectDefinitionSource(getDefinitionSourceCache().getFilterInvocationDefinitionSource());
}
}